package com.tao.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @ClassName PaymentService
 * @Author HETAO
 * @Date 2020/5/10 16:14
 */
@Service
public class PaymentService {
    /**
     * 正常访问，肯定OK
     *
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id) {
        return "线程池:  " + Thread.currentThread().getName() + "  paymentInfo_OK,id:  " + id + "\t" + "O(∩_∩)O哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOut_Handler", commandProperties = @HystrixProperty(
            name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000"
    ))
    public String paymentInfo_TimeOut(Integer id) {
        try {
            TimeUnit.MILLISECONDS.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池:  " + Thread.currentThread().getName() + " id:  " + id + "\t" + "O(∩_∩)O哈哈~" + "  耗时(秒): ";
    }

    public String paymentInfo_TimeOut_Handler(Integer id) {
        return "线程池:  " + Thread.currentThread().getName() + " id:  " + id + "\t" + "┭┮﹏┭┮请求超时或出现异常";
    }


    //=====================服务熔断


    @HystrixCommand(fallbackMethod = "paymentNotNegative",commandProperties = {
            @HystrixProperty(name="circuitBreaker.enabled",value="true"),//开启熔断器
            @HystrixProperty(name="circuitBreaker.requestVolumeThreshold",value="10"),//请求次数
            @HystrixProperty(name="circuitBreaker.sleepWindowInMilliseconds",value="10000"),//时间窗口期 10s
            @HystrixProperty(name="circuitBreaker.errorThresholdPercentage",value="60"),//失败率达到多少后跳闸
    })
    public String paymentCirCuitBreaker(Integer id) {
        if (id < 0) {
            throw new RuntimeException("id为负数" + id);
        }
        String serialNumber = IdUtil.simpleUUID();
        return "订单号:======>" + id + "====》》\t流水号+++++" + serialNumber;
    }


    public String paymentNotNegative(Integer id) {
        return "id不能为负数请稍后再试========" + id;
    }
}